This is a noobie question, so bear with me if it's not worded correctly:

Primary Requirements:

1. I'd like to have two namespaces - one private/per-user, and one public (visible by all logged-in users). The public mailbox would be used to distribute information to all users.

2. I'd like both POP3 and IMAP users to see both namespaces. As I understand it, this requires the use of the virtual plugin to create a virtual namespace which would mix together the private and public namespaces into one mailbox.

I have read: http://wiki.dovecot.org/Plugins/Virtual https://sys4.de/de/blog/2013/02/11/dovecot-virtual-setup-mit-globaler-sieve- spamfilter-regel-fur-pop3-nutzer/ (via Google translation)

I don't really understand the example MySQL code (too much "..." for me to follow) in the above web pages. As I understand it (and I could be very wrong), the solution relies on a MySQL query to determine which namespace should have inbox = yes -- the private namespace or the virtual namespace -- depending on if the user is an imap or pop3 user, respectively.

Question 1: How would this be done on a user-by-user basis if the userdb is a passwd-file flat file? Would it be something like this? -- Userdb extra fields for IMAP User: userdb_namespace/inbox/inbox=yes -- Userdb extra fields for POP3 User: userdb_namespace/virtual/inbox=yes

Question 2: If I want to allow any user to use either POP3 or IMAP, then could I do it this way?

protocol imap { namespace inbox { inbox = yes } } protocol pop3 { namespace virtual { inbox = yes } }

Thanks, Michael